:root {
  --ip-result-column: 190px;
  --ip-stage-height: 156px;
  --ip-console-padding: 30px;
}

.ip-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, .72fr);
  gap: 48px;
  align-items: end;
  border-bottom: 1px solid var(--color-border);
}

.ip-hero-copy {
  max-width: 760px;
}

.ip-hero-copy h1 {
  margin-top: 22px;
}

.ip-hero-copy .lead {
  margin-bottom: 0;
}

.ip-stage {
  min-height: var(--ip-stage-height);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background:
    linear-gradient(90deg, var(--color-transparent), var(--color-accent-soft)),
    var(--color-panel);
}

.ip-stage-label {
  margin-bottom: 25px;
  color: var(--color-text-faint);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .1em;
}

.ip-stage-line {
  position: relative;
  height: 2px;
  margin-inline: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-accent);
}

.ip-stage-point {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  border: 4px solid var(--color-panel);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

.ip-stage-point.is-terminal {
  background: var(--color-text);
}

.ip-stage-caption {
  margin-top: 16px;
  display: flex;
  justify-content: space-between;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: .64rem;
}

.ip-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(280px, .65fr);
  gap: 20px;
  align-items: stretch;
}

.ip-console,
.ip-side-notes {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
}

.ip-console {
  padding: var(--ip-console-padding);
  overflow: hidden;
}

.ip-console-head {
  padding-bottom: 24px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  border-bottom: 1px solid var(--color-border);
}

.ip-console-head h2 {
  margin: 7px 0 0;
  font-size: clamp(1.7rem, 3vw, 2.3rem);
}

.ip-query-state {
  max-width: 100%;
  padding: 7px 10px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: .68rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ip-query-state.is-ready {
  border-color: var(--color-success);
  color: var(--color-success);
}

.ip-query-state.is-error {
  border-color: var(--color-error);
  color: var(--color-error);
}

.ip-query-state.is-error .status-dot {
  border-color: var(--color-error);
}

.ip-result-list {
  margin: 0;
}

.ip-result-row {
  min-height: 70px;
  display: grid;
  grid-template-columns: var(--ip-result-column) minmax(0, 1fr);
  gap: 20px;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
}

.ip-result-row dt {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .04em;
}

.ip-result-row dd {
  min-width: 0;
  margin: 0;
  color: var(--color-text);
  overflow-wrap: anywhere;
}

.ip-result-primary dd {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 3vw, 1.85rem);
  font-weight: 700;
  letter-spacing: -.03em;
}

.ip-console-actions {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.ip-feedback {
  margin: 15px 0 0;
  color: var(--color-text-faint);
  font-size: .82rem;
}

.ip-side-notes {
  padding: 28px;
  background: var(--color-panel-raised);
}

.ip-side-notes h2 {
  margin-top: 9px;
  font-size: 1.55rem;
}

.ip-side-notes p {
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: .88rem;
}

.ip-check-sequence {
  margin: 24px 0;
  padding: 0;
  display: grid;
  gap: 0;
  list-style: none;
  counter-reset: quick-check;
}

.ip-check-sequence li {
  position: relative;
  min-height: 56px;
  margin: 0;
  padding: 0 0 18px 42px;
  color: var(--color-text-muted);
  counter-increment: quick-check;
}

.ip-check-sequence li::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 28px;
  height: 28px;
  display: grid;
  content: counter(quick-check);
  place-items: center;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-pill);
  color: var(--color-text);
  background: var(--color-accent-soft);
  font-family: var(--font-mono);
  font-size: .68rem;
}

.ip-check-sequence li:not(:last-child)::after {
  position: absolute;
  top: 30px;
  bottom: 2px;
  left: 14px;
  width: 1px;
  content: "";
  background: var(--color-border);
}

.ip-explainer {
  border-top: 1px solid var(--color-border);
}

.ip-note-panel {
  padding: 30px 0;
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 30px;
  border-bottom: 1px solid var(--color-border);
}

.ip-note-index {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .08em;
}

.ip-note-panel h3 {
  margin-bottom: 10px;
}

.ip-note-panel p {
  max-width: 850px;
  margin: 0;
  color: var(--color-text-muted);
}

.dns-browser {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
}

.dns-browser-nav {
  padding: 28px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-right: 1px solid var(--color-border);
  background: var(--color-bg);
}

.dns-browser-nav .mono-label {
  margin: 0 10px 18px;
}

.dns-browser-nav a {
  min-height: 42px;
  padding: 9px 10px;
  display: flex;
  align-items: center;
  border: 1px solid var(--color-transparent);
  border-radius: var(--radius-xs);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: .72rem;
}

.dns-browser-nav a:hover {
  border-color: var(--color-border);
  background: var(--color-panel-raised);
  color: var(--color-text);
}

.dns-browser-content {
  padding: 38px;
}

.dns-section {
  padding-top: 34px;
  padding-bottom: 34px;
  border-top: 1px solid var(--color-border);
  scroll-margin-top: var(--toc-top);
}

.dns-section p,
.dns-section li {
  color: var(--color-text-muted);
}

.dns-section .steps {
  margin-bottom: 0;
}

.dns-section .steps h4 {
  margin-bottom: 6px;
}

.dns-section .steps p {
  margin-bottom: 22px;
}

.ip-next-panel {
  padding: 30px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-lg);
  background: var(--color-panel-raised);
}

.ip-next-panel h2 {
  margin: 7px 0 10px;
  font-size: 1.7rem;
}

.ip-next-panel p {
  max-width: 700px;
  margin: 0;
  color: var(--color-text-muted);
}

@media (max-width: 980px) {
  .ip-hero {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .ip-stage {
    width: min(100%, 720px);
  }

  .ip-workspace {
    grid-template-columns: 1fr;
  }

  .dns-browser {
    grid-template-columns: 1fr;
  }

  .dns-browser-nav {
    padding: 10px;
    flex-direction: row;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
    overscroll-behavior-inline: contain;
  }

  .dns-browser-nav .mono-label {
    margin: 0 12px 0 4px;
    display: inline-flex;
    flex-shrink: 0;
    align-items: center;
  }

  .dns-browser-nav a {
    flex-shrink: 0;
  }
}

@media (max-width: 640px) {
  :root {
    --ip-result-column: 1fr;
    --ip-console-padding: 20px;
  }

  .ip-hero {
    gap: 30px;
  }

  .ip-stage {
    min-height: 132px;
    padding: 19px;
  }

  .ip-console-head {
    flex-direction: column;
    gap: 15px;
  }

  .ip-result-row {
    min-height: 0;
    padding: 18px 0;
    grid-template-columns: var(--ip-result-column);
    gap: 5px;
  }

  .ip-console-actions {
    align-items: stretch;
  }

  .ip-console-actions .button {
    flex: 1 1 0;
    min-width: 0;
  }

  .ip-note-panel {
    padding: 25px 0;
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .dns-browser-content {
    padding: 24px 20px;
  }

  .dns-section {
    padding-top: 28px;
    padding-bottom: 28px;
  }

  .ip-next-panel {
    padding: 24px 20px;
    grid-template-columns: 1fr;
  }

  .ip-next-panel .button-row {
    width: 100%;
  }

  .ip-next-panel .button {
    width: 100%;
  }
}